International Chronostratigraphic Timescale
The interval definitions in this timescale are derived from the following sources:
- K. M. Cohen, S.C. Finney, P.L. Gibbard and J.-X. Fan. 2023. The ICS International Chronostratigraphic Chart v2023/09. view
- F. M. Gradstein, J. G. Ogg, M. D. Schmitz and G. M. Ogg. 2020. Geologic Time Scale 2020 view
- M. Freudenthal. 2006. Mammal Paleogene zones. personal communication view
- J. Palfy, P. L. Smith, and J. K. Mortensen. 2000. A U-Pb and 40Ar/39Ar time scale for the Jurassic. Canadian Journal of Earth Sciences 37(6):923-944 view
- J. Meng and M. C. McKenna. 1998. Faunal turnovers of Paleogene mammals from the Mongolian Plateau. Nature 394:364-367 view
- W. B. Harland, R. L. Armstrong, A. V. Cox, L. E. Craig, A. G. Smith and D. G. Smith. 1990. A Geologic Time Scale 1989. view
- B. D. Webby. 1998. Steps toward a global standard for Ordovician stratigraphy. Newsletters in Stratigraphy 36:1-33 view
There are 59 timescales which overlap this one. show
Interval boundaries marked with * have been interpolated based on the differences between the ages for international timescale boundaries quoted in the source and the currently accepted ages for those boundaries.
Interval names marked with † are no longer in current use.
This timescale is used in the definition of 126161 collections
International Chronostratigraphic Timescale | Mammal Paleogene Zones | Ten Million Year Bins | Ammonite Chrons of Northwest Europe | Paleogene Mammal Ages of Asia | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Quaternary | Holocene | Meghalayan | Cenozoic 6 | 0 | |||||||||
Northgrippian | 0.0042 | ||||||||||||
Greenlandian | 0.0082 | ||||||||||||
Pleistocene | Late Pleistocene | 0.0117 | |||||||||||
Chibanian | 0.129 | ||||||||||||
Calabrian | 0.774 | ||||||||||||
Gelasian | 1.8 | ||||||||||||
Neogene | Pliocene | Piacenzian | 2.58 | ||||||||||
Zanclean | 3.6 | ||||||||||||
Miocene | Messinian | 5.333 | |||||||||||
Tortonian | 7.246 | ||||||||||||
Serravallian | Cenozoic 5 | 11.63 | |||||||||||
Langhian | 13.82 | ||||||||||||
Burdigalian | 15.98 | ||||||||||||
Aquitanian | 20.44 | ||||||||||||
Paleogene | Oligocene | Chattian | MP 30/MP 29/MP 28/MP 27/MP 26 | MP 25 | Cenozoic 4 | Tabenbulakian | Hsandagolian | 23.03 | |||||
Rupelian | MP 24/MP 23/MP 22/MP 21 | Kekeamuan | 27.82 | ||||||||||
Eocene | Priabonian | MP 20/MP 19/MP 18/MP 17B/MP 17A | Cenozoic 3 | Houldjinian/Ergilian/Ulangochuian | 33.9 | ||||||||
Bartonian | MP 16 | Sharamurunian/Irdinmanhan/Arshantan | 37.71 | ||||||||||
Lutetian | MP 15/MP 14/MP 13/MP 12/MP 11 | Cenozoic 2 | 41.2 | ||||||||||
Ypresian | MP 10/MP 8 + 9/MP 7 | Bumbanian | 47.8 | ||||||||||
Paleocene | Thanetian | MP 6 | MP 1 - 5 | Cenozoic 1 | Gashatan | 56 | |||||||
Selandian | 59.2 | ||||||||||||
Danian | 61.6 | ||||||||||||
Cretaceous | Late Cretaceous | Maastrichtian | Cretaceous 8 | 66 | |||||||||
Campanian | Cretaceous 7 | 72.1 | |||||||||||
Santonian | Cretaceous 6 | 83.6 | |||||||||||
Coniacian | 86.3 | ||||||||||||
Turonian | 89.8 | ||||||||||||
Cenomanian | Cretaceous 5 | 93.9 | |||||||||||
Early Cretaceous | Albian | Cretaceous 4 | 100.5 | ||||||||||
Aptian | Cretaceous 3 | 113 | |||||||||||
Barremian | Cretaceous 2 | 121.4 | |||||||||||
Hauterivian | 125.77 | ||||||||||||
Valanginian | Cretaceous 1 | 132.6 | |||||||||||
Berriasian | 139.8 | ||||||||||||
Jurassic | Late Jurassic | Tithonian | Jurassic 6 | 145 | |||||||||
Kimmeridgian | Jurassic 5 | 149.2 | |||||||||||
Oxfordian | 154.8 | ||||||||||||
Middle Jurassic | Callovian | 161.5 | |||||||||||
Bathonian | Jurassic 4 | 165.3 | |||||||||||
Bajocian | Parkinsoni/Garantiana/Subfurcatum/Sauzei/Laeviuscula/Discites | 168.2 | |||||||||||
Humphresianum | 168.4 | ||||||||||||
Aalenian | Jurassic 3 | Concavum/Murchisonae/Opalinum | 170.9 | ||||||||||
Early Jurassic | Toarcian | Levesquei/Variabilis/Bifrons | Thouarsense | 174.7 | |||||||||
180.1 | |||||||||||||
Serpentinum/Falciferum/Tenuicostatum | 182 | ||||||||||||
Pliensbachian | Jurassic 2 | Spinatum/Margaritatus/Davoei/Ibex/Jamesoni | 184.2 | ||||||||||
Sinemurian | Jurassic 1 | Raricostatum/Oxynotum/Obtusum/Turneri/Semicostatum/Bucklandi | 192.9 | ||||||||||
Hettangian | Angulata/Liasicus/Planorbis | 199.5 | |||||||||||
Triassic | Late Triassic | Rhaetian | Triassic 4 | 201.4 | |||||||||
Norian | 208.5 | ||||||||||||
Carnian | Triassic 3 | 227 | |||||||||||
Middle Triassic | Ladinian | Triassic 2 | 237 | ||||||||||
Anisian | 242 | ||||||||||||
Early Triassic | Olenekian | Triassic 1 | 247.2 | ||||||||||
Induan | 251.2 | ||||||||||||
251.902 |